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EC135 System Identification for Model Following Control and Turbulence Modeling

Seher-Weiß, Susanne and von Grünhagen, Wolfgang (2007) EC135 System Identification for Model Following Control and Turbulence Modeling. In: Proccedings of the 1st CEAS European Air and Space Conference 2007 (CEAS-2007-275), pp. 2439-2447. 1st CEAS European Air and Space Conference, 2007-09-10 - 2007-09-13, Berlin.

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Abstract

System identification for teh EC135 has been performed for 60kts forward flight as well as for the hover condition. The complexity of the models ranges from 6-DoF rigid body models to 16 state 11-DoF models that include flapping, dynamic inflow and rotor lead-lag. The identified models are going to be used as a basis for the development of the model following flight control system as well as for the development of controller equivalent turbulence models. For the model following flight control system, flight test with controllers based on the identified models for the forward flight condition have already been performed. For hover, the refinement of the control system is ongoing. A hover model including flapping and dynamic inflow but neglecting the motion in longitudinal direction has been identified and shall form the basis for the development of the turbulence models. The quality of this model can only be assessed once the corresponding flight tests in turbulence are available and the techniques being described will be applies.

Document Type:Conference or Workshop Item (Speech)
Title:EC135 System Identification for Model Following Control and Turbulence Modeling
Authors:
AuthorsInstitution or Email of Authors
Seher-Weiß, SusanneUNSPECIFIED
von Grünhagen, WolfgangUNSPECIFIED
Date:September 2007
Journal or Publication Title:Proccedings of the 1st CEAS European Air and Space Conference 2007
Refereed publication:No
In ISI Web of Science:No
Page Range:pp. 2439-2447
Editors:
EditorsEmail
Deutsche Gesellschaft für Luft- und Raumfahrt, UNSPECIFIED
Status:Published
Keywords:EC135, System Identification, Hover, Turbulence Model, Model Following Control
Event Title:1st CEAS European Air and Space Conference
Event Location:Berlin
Event Type:international Conference
Event Dates:2007-09-10 - 2007-09-13
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Smart Rotorcraft
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems
Deposited By: Susanne Seher-Weiß
Deposited On:07 Jan 2008
Last Modified:25 Mar 2014 14:16

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